The percentage of people who click on your ad after seeing it. It is the primary indicator of ad relevance and creative quality.
CTR = (Total Clicks / Total Impressions) × 100
A high CTR means your ad is stopping the scroll and resonating with the audience. A low CTR suggests your creative is boring, confusing, or targeting the wrong people.
On platforms like Meta, ensure you are looking at Outbound CTR (Link Click-Through Rate), not just "All CTR." "All CTR" includes clicks to expand the text or view the profile, which don't drive traffic to your site.
Benchmarks vary wildly by platform. Search ads have high CTRs because intent is high. Display/Social ads have lower CTRs because they interrupt browsing.